BenzWorld Senior Member
Date registered: Sep 2003
Vehicle: SL500, ML320, E320
Location: Scottsdale, AZ
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RE: Sunoco 91/94 octane vs. Shell V-Power 91 octane
There's absolutely no difference in the basic gasoline formulation bewteen Shell and Sunoco. In fact, depending where you live, the actual gas you buy may not been made by either of those companies.
The difference is generally in the additives that are pumped into the tanker truck at the terminal. Things that affect emissions are generally mandated by the state or federal EPA's.
Although the marketing departments of each oil company might disagree, your C230 will find no difference between brands with the same octane ratings.